Re: mosix cluster and dhcp
well, after all said and done, I decided to make the switch to openmosix. I initially brushed off the idea of moving
from mosix to openmosix, but I decided to do a bit of reading. I liked what I read about the omdisc daemon. Plus,
openmosix had made a fair amount of progress since I setup my first ever mosix cluster, and it just seemed like a smart
move in the end.
so, a few days later, and plenty of failed kernel compiles later (not problems with the compile itself, mostly kernel
configuration issues) I've got the backbone of a new cluster up and running. And that omdisc daemon is nice!
All I need to do is run a dhcp server. I don't even have to worry about the existence of the mosix.map (er...
openmosix.map) and omdiscd will automatically communicate to any new nodes booting up and change the configuration on
all machines on the fly to add the new node.
now to just get X back up and running, and start crunching.
once again, the debian community points me in the right direction. thanks!
-rp
----- Original Message -----
From: "Josh Lauricha" <laurichj@bioinfo.ucr.edu>
To: <debian-beowulf@lists.debian.org>
Sent: Friday, February 04, 2005 1:49 PM
Subject: Re: mosix cluster and dhcp
> It sounds like you'd probably be better off with oM and the oM auto
> discovery daemon.
>
> On Thu 02/03/05 23:25, Doug wrote:
> > been a while since I've done anything with my cluster. Anyhoo, I've come across this little hitch.
> >
> > Up until now, I've had clients that use static IP's in the cluster. But for the rest of my clients, I am using
dhcp,
> > since extra machines may come and go from the cluster. Nodes 1 and 2 are static, they will always be there.
> >
> > My current config is as such:
> > 1) Main node (2 nics, this one has all the software I plan to run on it. It is the only machine connected to the
> > 'outside')
> > IP - 10.0.0.1
> > mosix.map:
> > 1 127.0.0.1 1
> > 2 10.0.0.2 1
> > 3 10.0.0.10 190
> >
> > 2) dhcp node (this hosts dhcp for the rest of the dummy nodes)
> > IP - 10.0.0.2
> > mosix.map:
> > 1 10.0.0.1 1
> > 2 127.0.0.1 1
> > 3 10.0.0.10 190
> >
> > 3-194) dummy nodes
> > These will all be setup the same. I eventually hope to setup a netboot, so they don't need harddrives... makes it a
lot
> > easier to add or remove a node. (the main reason I implemented dhcp in the first place)
> >
> > anyways, these guys get their IP's dynamically from the dhcp server. some of the machines that I run in my cluster
are
> > actually dual boot, and so they're in and out of the cluster all the time. But I can't make a mosix.map that works
with
> > dhcp.
> >
> > I tried
> > 1 10.0.0.1 1
> > 2 10.0.0.2 1
> > 3 127.0.0.1
> > 4 10.0.0.10 190
> > hoping that they would still see each other, but unfortunately, all the dummy nodes try to be the 3rd node, and
thus,
> > only one connects in, the rest sit by themselves..
> >
> > So I tried changing it to
> > 1 10.0.0.1 1
> > 2 10.0.0.2 1
> > 3 10.0.0.10 190
> > but then it complains
> > setpe: the supplied table is well-formatted, but my IP address (127.0.0.1) is not there!
> > now, The /etc/hosts file correctly has itself under 127.0.0.1, but since it will be dynamic IP's, I can't add any
more
> > entries to either the mosix.map or the hosts file. How do I get this to work with dynamic IP's?
> >
> > example hosts file of a dummy node
> > 127.0.0.1 D3100 localhost
> >
> > which is correct...
> >
> > thoughts?
> > -rp
> >
> >
> > --
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> > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> >
> >
>
> --
>
> ------------------------------------------------------
> | Josh Lauricha | Ford, you're turning |
> | laurichj@bioinfo.ucr.edu | into a penguin. Stop |
> | Bioinformatics, UCR | it |
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